My optimism wears heavy boots and is loud.

Don't ever take a fence down until you know why it was put up.

A man may die, nations may rise and fall, but an idea lives on.

Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.

Live as if you were to die tomorrow. Learn as if you were to live forever.

If we command our wealth, we shall be rich and free. If our wealth commands us, we are poor indeed.

Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.

In a conflict between the heart and the brain, follow your heart.

First ask yourself: What is the worst that can happen? Then prepare to accept it. Then proceed to improve on the worst.

Out of intense complexities intense simplicities emerge.

The way to become rich is to put all your eggs in one basket and then watch that basket.

We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.

You must find the place inside yourself where nothing is impossible.

If you can't you must, and if you must you can.

Repetition of the same thought or physical action develops into a habit which, repeated frequently enough, becomes an automatic reflex.

A goal is not always meant to be reached, it often serves simply as something to aim at.

We cannot solve our problems with the same thinking we used when we created them.

Courage isn't having the strength to go on - it is going on when you don't have strength.

The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.

Once you learn to quit, it becomes a habit.

I don't care what people think or say about me, I know who I am.